Device for locking ring holders of ring rails of ring spinning and twisting machines



July 17, 1962 e. ANCARANI 3,044,249 DEVICE FOR LOCKING RING HOLDERS OFRING RAILS OF RING SPINNING AND TWISTING MACHINES Filed April 4, 1960 I5Sheets-Sheet 1 INVENTOR.

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DEVICE FOR LOCKING RING HOLDERS OF RING RAIL OF RING SPINNING ANDTWISTING MACHINES Filed April 4, 1960 3 Sheets-Sheet 2 JI i Jnb

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DEVICE FOR LOCKING RING HOLDERS OF RING RAILS OF RING SPINNING ANDTWISTING MACHINES 3 Sheets-Sheet 3 Filed April 4, 1960 INVENTOR.

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United States Patent Q 3,044,249 DEVICE FOR LOCKING RING HOLDERS F RINGRAILS 0F RING SPINNING AND TWISTING MACHINES Giorgio Ancarani, Milan,Italy, assignor to Zinser Textilmaschinen G.m.b.H., Ebersbach, Fils,Germany Filed Apr. 4, 1960, Ser. No. 19,715 Claims priority, applicationItaly Apr. 6, 1959 6 Claims. (Cl. 57-122) The present invention relatesto a device for locking ring holders of movable ring rails of ringspinning and twisting machines and, more specifically, refers to suchdevices of this type in which the ring holders can individually beunlocked from the ring rail.

With heretofore known devices of the type involved, in which the lockingand unlocking is effected by manipulation of screws, the unlockingoperation is rather tedious and time-consuming.

Other heretofore known locking devices with snap action work rathernoisily and in an unsteady manner thereby ha-rmfully affecting theroving to be spun or twisted.

It is, therefore, an object of the present invention to provide a devicefor locking ring holders of ring rails of spinning and twistingmachines, which will overcome the above mentioned drawbacks.

It is another object of this invention to provide a device for lockingring holders as set forth in the preceding paragraph, which will assurea fast and vibration-free locking of the individual ring holder.

It is still another object of this invention to provide a device asoutlined in the preceding paragraphs which will have an automaticaction.

These and other objects and advantages of the invention will appear moreclearly from the following specification in connection with theaccompanying drawing diagrammatically illustrating partly in elevationand partly in section a device according to the present invention.

In the drawings:

FIG. 1 is a partial view of a spinning machine having the ring holderclutched to the ring rail by permanent magnets, the two outer spindleshaving the spinning rings shown supported in operative condition,whereas the intermediate spinning ring has been released and lowered.

FIG. 2 illustrates, on a larger scale, the arrangement of an individualspinning ring support with the spinning ring supported in workingposition.

FIG. 3 is a view similar to FIG. 1 but shows an arrangement in which,instead of permanent magnets, electromagnets are provided for couplingthe ring rail and the ring holders together.

The locking device according to the present invention is characterizedin that magnetic means are provided for holding and securing theindividual ring holder on the movable ring rail in working position.These magnetic holding or locking means may be arranged between the ringrail and the individual ring holder in such a way that, wheneverdesired, locking connection can be effected between the individual ringholder and said ring rail. In this way, the detachable individual ringholder may, when engaging said magnetic means, also in working positionremain firmly locked to the ring rail until it is desired to detach saidring holder by interrupting the magnetic force effect.

As magnetic means there may be employed an electromagnet or a permanentmagnet. In the first instance, an interruption in the current supply tothe electromagnet will suflice to disconnect the individual ring holderfrom the electromagnet. In the other instance, the two members namelythe ring holder and the magnet may be detached from each other bymechanical means as for instance wedge means, screws, eccentric means,levers or 3,044,249 Patented July 17, 1962 the like. If in such instancethe two members are again to be locked to each other, it is merelynecessary tolift the individual ring holder to such an extent that itmoves into the efiective range of the magnet. Thereupon an immediate andsafe lockingof the two members will be assured.

Referring now to the drawing in detail, and in particular to FIGS. 1 and2, the arrangement shown therein comprises guiding means 1, for instancein form of guiding rods, attached to a ring rail 4, and along whichguiding rods the individual ring holders 2 are axially displaceable bymeans of guiding sleeves 3. Inter-posed between each ring holder 2 andthe movable ring rail 4 is a magnet 5. In the particular embodimentshown in FIGS. 1 and 2, the magnet 5 is assumed to represent a permanentmagnet which is mounted between the ring holder 2 and ring rail 4adjacent the guiding rod 1. The device shown in the drawing occupies itslocking position in which the ring holder 2 is locked to the ring rail4. Connected to ring holder 2 in a manner known per se is a ring 6 whichmay be of standard design customary in connection with ring spinning andtwisting machines.

The device furthermore comprises a lever 7 connected to an eccentric 8which is eccentrically journalled on pin 9 in ring rail 4. Thus, it willbe evident that in order to disconnect the ring holder 2 from the ringrail 4, it is merely necessary to press the lever 7 downwardly in thedirection of the arrow 10 whereby ring holder 2 will be presseddownwardly and will thus be moved away from magnet 5 therebyinterrupting the power connection between magnet 5 and ring holder 2.

While the lever-eccentric arrangement just described has proved verysimple and effective, also any other mechanical disengaging means fordisengaging the ring holder 2 from the ring rail 4 may be employed.Furthermore, the individual ring holder may be guided by means ofstationary guiding means or by movable guiding means. Furthermore, theshape and contour of the guiding surfaces may be selected in conformitywith the particular requirements involved.

In the modification of FIG. 3, instead of the'magnets 5 of the FIGS. 1and 2 modification, electromagnets 5a are employed to support the ringholders 2. Each electromagnet is in series with a normally closed switch11 which, when opened, will deenergize the pertaining electromagnet andrelease the pertaining ring holder.

It is, of course, to be understood that the present invention is, by nomeans, limited to the particular construction shown in the drawing butalso comprises any modifications within the scope ofthe appended claims.Thus, it is also possible to connect the permanent magnet orelectromagnet to the ring nail in a manner different from thearrangement shown in the drawing and it is further possible to designthe contacting surfaces of magnet and ring holder not merely as planesurfaces but also as spherical, semisp'heri-cal, conical or othersurfaces.

What I claim is:

1. In a ring spinning and twisting machine having a movable ring rail: aring holder for movement with said ring rail, and magnetic meansinterposed between said ring rail and said ring holder operable foroperatively but releasably coupling said ring holder and said ring railtogether when the ring holder is positioned adjacent said ring rail.

2. In a ring spinning and twisting machine having a movable ring rail:guiding means arranged adjacent said ring rail, a ring holderdisplaceably mounted on said guiding means for movement toward and awayfrom said ring rail, and magnetic means interposed between said ringrail and said ring holder operable for operatively but releasablycoupling said ring holder to said ring rail when the ring holder ispositioned adjacent said ring rail.

3. In a ring spinning and twisting machine having a,

movable ring rail: guiding means arranged adjacent said ring rail, aring holder movable on said guiding means toward and away from said ringrail, electromagnetic means interposed between said ring rail and saidring holder operable when energized to couple said ring holder to saidring rail, and means for deenergizing said electromagnetic means torelease said ring holder from said ring rail.

' 4. In a ring spinning and twisting machine having a movable ring rail:guiding means arranged adjacent said ring rail, a ring holder movable onsaid guiding means toward and away from said ring rail, a permanentmagnet interposed between said ring rail and said ring holder operablefor operatively coupling said ring holder and said ring rail togetherwhen the ring holder is moved into the proximity of the ring rail, andmeans selectively operable fior moving said ring holder away from saidring rail to release the ring holder from the influence of saidpermanent magnet by which the ring holder is coupled to said ring rail.

5. In a ring spinning and twisting machine having a movable ring rail: aring holder for movement with said ring rail, magnetic means interposedbetween said ring rail and said ring holder for coupling said ringholder and said ring rail tog-ether, and mechanical means connected tosaid ring rail and operable selectively to disengage and space said ringholder from said ring rail to reduce the influence of said magneticmeans with regard to coupling the ring holder to the ring rail therebyto permit the ring holder to be readily separated from the ring rail.

6. In a. ring spinning and twisting machine having a movable ring rail:a ring holder for movement with said ring rail, magnetic meansinterposed between said ring rail and said ring holder for coupling saidring holder and said ring rail together, eccentric means connected tosaid ring rail and operable to engage said ring holder when said ringholder is coupled to said ring rail, and lever means operativelyconnected to said eccentricmeans and operable to actuate the latter tomove said ring holder away from said ring rail.

References Cited in the file of this patent UNITED STATES PATENTS1,031,086 Pierce July 2, 1912 1,858,672 Lawe May 17, 1932 2,686,940Burnham Aug. 24, 195 4

